to move, wag, or shake the head back and forth (see Molina; English translation here by Stephanie Wood)
Orthographic Variants:
quechtlatlaza
Alonso de Molina:
quech tlatlaza. nino. (pret. oninoquechtlatlaz.) collear, o menear la cabeza de aca para alla. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 88v. col. 1. Thanks to Joe Campbell for providing the transcription.